Osama bin Laden

In an effort to save some of Yemen's holiest and most historical ancient sites, UNESCO has shared the coordinates of 50 sites with militaries involved in the fighting. Although targeted hits have decreased, the sites are still vulnerable to the violence.

As Russia, Iran, and the US strive to establish facts on the ground to maximize their chances of shaping postwar Syria, Turkey is posing a challenge to a key piece of the Trump administration’s emerging policy.

As Iraq celebrates the defeat of ISIS, the Sunni Arab community is confronting an identity crisis in the aftermath of the occupation. For some, accommodation with the Shiite-led government offers a new Iraqi nationalism.

Iran has achieved milestones of leverage and influence that rival any regional power in the past half-century. While there are limits to how far it can extend its authority, Tehran’s rapid rise poses new challenges to the US, Israel, and Saudi Arabia as it undermines their previous dominance. How far can Tehran extend its reach?

As many New Yorkers express relief at the relatively minor impact of the latest terror attack on their city, experts point out that, in the US, both suicide attacks and attempts to hide homemade bombs in public places are rarely successful.

Just before his death, ex-dictator Ali Abdullah Saleh seemed to offer the Saudis a face-saving way out of their war in Yemen, where a humanitarian crisis is already in full swing. For now, they are vowing to press the attack against the Shiite Houthis.

The alliance between former president Ali Abdullah Saleh's forces and the Houthi rebels, which has been fraying in recent months, broke as Houthi rebels killed Mr. Saleh near Sanhan in Yemen. The Houthis believed Saleh was shifting his support to the opposition.

The disconnect over Russia between Trump and his top national security aides – including over meddling in US elections – is bursting increasingly into the open and showing signs of hampering decisionmaking.

To gain power, ISIS has a history of exploiting sectarian divides. But the sheer carnage of the attack on a mosque frequented by Sufi Muslims appears to be alienating ISIS's base, even among Sinai's downtrodden.

The rapid territorial losses in Iraq and Syria will likely drive the jihadists underground there, but ISIS 'provinces' and expatriates are scattered broadly, and the resilient organization remains a threat even without its caliphate.

The deaths of the four US troops have awoken Americans to military deployments in Africa. With ISIS ousted from its capital in Syria, Pentagon officials say, US counterterrorism efforts are likely to focus even more on Africa.

Turkey's incursion into Idlib province was part of a 'de-escalation' agreement with pro-Syrian powers Russia and Iran and an outgrowth of a diplomatic process that some analysts say could lay the groundwork for a long-sought political solution in Syria.

Much blood has been spilled in Syria's civil war, and many of Assad's neighbors have supported forces that sought his ouster. Whether to reengage with someone accused of crimes against humanity is more than just a tactical decision.